Single Zone Variable Air Volume & Rapid Restart System Control; Emergency Override - Trane IntelliPak 2 Series Installation, Operation And Maintenance Manual

I I n n s s t t a a l l l l a a t t i i o o n n
is wired to a BAYSENS119* Remote Panel, wiring must
be 18 AWG Shielded Twisted Pair (Belden 8760 or
equivalent). Refer to Table 43, p. 84
Temperature vs. Resistance coefficient.
Remote Zone Sensor (BAYSENS077*)
This electronic analog sensor can be used with
BAYSENS119* or 021* Remote Panels. When this
sensor is wired to a BAYSENS119* Remote Panel,
wiring must be 18 AWG Shielded Twisted Pair (Belden
8760 or equivalent). Refer to the specific Remote Panel
for wiring details.
CO2 Sensing—Space or Duct
The CO sensor shall have the ability to monitor space
2
occupancy levels within the building by measuring the
parts per million of CO in the air. As the CO
2
increase, the outside air damper modulates to meet the
CO space ventilation requirements.
2
Remote Minimum Position Potentiometer
(BAYSTAT023*)
The remote minimum position potentiometer is used
on units with an economizer. It allows the operator to
remotely set the economizer minimum position (which
controls the amount of outside air entering the unit).
Use the installation instructions that shipped with the
potentiometer to install it, and the appropriate
illustrations beginning with
it to the unit.
Single Zone Variable Air Volume & Rapid
Restart System Control
Remote Zone Sensor (BAYSENS016*)
This bullet-type, analog temperature sensor can be
used for supply air and return air temperature sensing.
Wiring procedures vary according to application and
equipment. When this sensor is wired to a
BAYSENS119* Remote Panel, wiring must be 18 AWG
Shielded Twisted Pair (Belden 8760 or equivalent).
Refer to "Table 36, p. 91," p. 84
Resistance coefficient.
External Auto/Stop Switch
A field supplied single pole single throw switch may be
used to shut down the unit operation. This switch is a
binary input wired to the RTM. When opened, the unit
shuts down immediately and can be cancelled by
closing the switch. Refer to the appropriate illustrations
beginning with "Figure 61, p. 93," p. 86
connection terminals in the unit control panel. The
switch must be rated for 12 ma @ 24 VDC minimum.

Emergency Override

When a Lontalk®/BACnet® communication module is
installed, the user can initiate from the Trane Tracer®
Summit or 3rd party BAS one of five (5) predefined, not
available to configure, Emergency Override sequences.
82
for the
levels
2
Figure 60, p. 87 to connect
for the Temperature vs.
for the proper
All compressors, condenser fans and the
Humidification output are deenergized for any
Emergency Override sequence. Each Emergency
Override sequence commands the unit operation as
follows:
• P P R R E E S S S S U U R R I I Z Z E E _ _ E E M M E E R R G G
– Supply Fan - On
– Supply Fan VFD Open/Max (if so equipped)
– Exhaust Fan - Off; Exhaust Dampers Closed (if
so equipped)
– OA Dampers - Open; Return Damper - Closed
– Heat - All heat stages off; Mod Heat output at 0
VDC
– Occupied/Unoccupied/VAV box output -
Energized
– VOM Relay - Energized (if so equipped)
– Preheat Output - Off
– Return Fan - Off; Exhaust Dampers - Closed (if
so equipped)
– Return VFD - Min (if so equipped)
• E E M M E E R R G G _ _ D D E E P P R R E E S S S S U U R R I I Z Z E E
– Supply Fan - Off
– Supply Fan VFD - Closed/Min (if so equipped)
–
Exhaust Fan - On; Exhaust Dampers Open/Max
(if so equipped)
– OA Dampers - Closed; Return Damper - Open
– Heat - All heat stages off; Mod Heat output at 0
VDC
– Occupied/Unoccupied/VAV box output -
Energized
– VOM Relay - Energized (if so equipped)
–
Preheat Output - Off
– Return Fan - On; Exhaust Dampers - Open (if so
equipped)
– Return VFD - Max (if so equipped)
• E E M M E E R R G G _ _ P P U U R R G G E E
–
Supply Fan - On
– Supply Fan VFD - Open/Max (if so equipped)
– Exhaust Fan - On; Exhaust Dampers Open (if so
equipped)
– OA Dampers - Open; Return Damper - Closed
– Heat - All heat stages off; Mod Heat output at 0
VDC
– Occupied/Unoccupied/VAV box output -
Energized
– VOM Relay - Energized (if so equipped)
– Preheat Output - Off
– Return Fan - On; Exhaust Dampers - Open (if so
equipped)
– Return VFD - Max (if so equipped)
• E E M M E E R R G G _ _ S S H H U U T T D D O O W W N N
– Supply Fan - Off
– Supply Fan VFD - Closed/Min (if so equipped)
– Exhaust Fan - Off; Exhaust Dampers Closed (if
so equipped)
RT-SVX24Q-EN